WO2024106966A1 - Radiomètre à double photodiode - Google Patents

Radiomètre à double photodiode Download PDF

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Publication number
WO2024106966A1
WO2024106966A1 PCT/KR2023/018431 KR2023018431W WO2024106966A1 WO 2024106966 A1 WO2024106966 A1 WO 2024106966A1 KR 2023018431 W KR2023018431 W KR 2023018431W WO 2024106966 A1 WO2024106966 A1 WO 2024106966A1
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WO
WIPO (PCT)
Prior art keywords
light
radiometer
base substrate
optical sensor
measured
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Ceased
Application number
PCT/KR2023/018431
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English (en)
Korean (ko)
Inventor
이동훈
신동주
박성종
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Korea Research Institute of Standards and Science
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Korea Research Institute of Standards and Science
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Publication of WO2024106966A1 publication Critical patent/WO2024106966A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0271—Housings; Attachments or accessories for photometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0433—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using notch filters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G01J2001/4446—Type of detector
    • G01J2001/446—Photodiode

Definitions

  • a radiometer in its most general sense, is a device that measures optical radiation.
  • the primary use of a radiometer is to characterize a radiation source by measuring or monitoring the optical radiation emitted by the source.
  • the spectral sensitivity of the first and second optical sensors linearly increases as the wavelength value of incident light increases within a preset light wavelength range.
  • the optical filter unit may include a broadband filter having a predetermined transmittance in the set optical wavelength region.
  • the dual photo diode radiometer according to the present invention is provided with an accommodating space inside which the base substrate is accommodated, and an entrance opening is provided on the side opposite to the incident area of the base substrate so that the light to be measured is incident on the base substrate. It may be provided with a formed case and a diffusion plate installed on the entrance side to diffuse the measurement target light incident on the base substrate.
  • Figure 3 is a graph of the spectral responsivity of the first and second optical sensor units of the dual photo diode radiometer of Figure 1;
  • Figure 4 is a graph of the spectral response ratio of the first and second optical sensor units of the dual photo diode radiometer of Figure 1;
  • Figures 5 to 8 are graphs showing the function of the optical filter unit of the dual photo diode radiometer of Figure 1.
  • first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.
  • a first component may be named a second component without departing from the scope of the present invention, and similarly, the second component may also be named a first component.
  • FIG. 1 and 2 show a dual photo diode radiometer 100 according to the present invention.
  • the dual photo diode radiometer 100 includes a case 110, a base substrate 120 installed inside the case 110, and a measurement object installed on the base substrate 120 and emitted from a light source.
  • First and second optical sensor units 130 and 140 for receiving light, and installed on the optical path of the light to be measured between the light source and the base substrate 120, filter the light incident on the base substrate 120. It is provided with a filter unit 150 and an analysis module (not shown) that analyzes the photocurrent signal provided from the first and second optical sensor units 130 and 140.
  • the case 110 is installed on the optical path of the light to be measured emitted from the light source, and a receiving space 111 in which the base substrate 120 is accommodated is formed therein. Additionally, an entrance port 112 is formed on the front of the case 110 to allow the light to be measured to enter the receiving space 111. Meanwhile, in the illustrated example, the case 110 is shown as having a cylindrical structure, but the case 110 is not limited to this and may be formed in various shapes such as a square column or an oval.
  • the case 110 has a diffusion plate 113 installed on the entrance port 112 side to diffuse the measurement target light incident on the receiving space 111. Since the diffusion plate 113 is a diffuser commonly used in the related art to diffuse incident light, detailed description will be omitted.
  • the base substrate 120 is set on the optical path of the light to be measured emitted from the light source, and is installed on the rear inner surface of the case 110.
  • the base substrate 120 has an incident area 121 on the front surface opposite the entrance opening 112, where light to be measured is incident.
  • the first optical sensor unit 130 is provided with a first photo diode 131 installed in the incident area 121 of the base substrate 120 where the measurement target light is incident so as to receive the measurement target light. .
  • the first photodiode 131 is an optical sensor that receives light to be measured and generates a photocurrent signal corresponding to the light to be measured. The photocurrent signal of the first photodiode 131 is transmitted to the analysis module.
  • the second optical sensor unit 140 is installed in the incident area 121 of the base substrate 120 adjacent to the first optical sensor unit 130 and receives the light to be measured. It has a different spectral responsivity from that of the unit 130.
  • the second optical sensor unit 140 includes a second photo diode 141 and a transmission filter layer 142.
  • the second photodiode 141 is installed in the incident area 121 of the base substrate 120 and receives light to be measured to generate a photocurrent signal.
  • the second photo diode 141 is installed in the incident area 121 adjacent to the first photo diode 131, and a light receiving surface for receiving the light to be measured is provided on the front side.
  • the second photo diode 141 uses the same optical sensor as the corresponding first photo diode 131.
  • the transmission filter layer 142 is coated on the light-receiving surface of the second photo diode 141 to change the transmittance according to the wavelength of light incident on the light-receiving surface.
  • the transmission filter layer 142 is formed as a non-metallic dielectric layer coating on the light-receiving surface of the second photo diode 141 to achieve a desired spectral transmittance.
  • the spectral transmittance and spectral reflectance of the corresponding transmission filter layer 142 may be designed to be different from each other. Meanwhile, the transmission filter layer 142 is not limited to this, and any variable means that can change the transmittance according to the wavelength of light incident on the second photo diode 141 can be applied.
  • the spectral sensitivities of the first optical sensor unit 130 and the second optical sensor unit 140 are set to be different from each other by the above-described transmission filter layer 142.
  • the spectral sensitivities of the first optical sensor unit 130 and the second optical sensor unit 140 increase linearly as the wavelength value of incident light increases within a preset light wavelength range.
  • the set light wavelength range is 400 nm to 950 nm, but is not limited to this and can be set in various ways depending on the light to be measured.
  • Figure 3 shows a graph of the spectral responsivity of the first and second optical sensor units 130 and 140 made of silicon photodiodes.
  • A is a graph of the spectral responsivity of the silicon photodiode
  • B is the spectral responsivity of the silicon photodiode coated with the transmission filter layer 142.
  • the spectral sensitivity of a single silicon photodiode, such as the first optical sensor unit 130 may linearly increase as the wavelength of incident light increases in a set light wavelength region.
  • the silicon photodiode coated with the transmission filter layer 142 also has a linear increase in spectral sensitivity within the set light wavelength region, but has a spectral sensitivity different from that of a single silicon photodiode. indicates. Therefore, the second optical sensor unit 140 having a different spectral sensitivity from that of the first optical sensor unit 130 can be easily manufactured by coating the transmission filter layer 142 on the same photo diode as the first optical sensor unit 130. can do.
  • Figure 4 shows a graph of the spectral response ratio of the first and second optical sensor units 130 and 140.
  • the spectral response ratio of the first and second optical sensor units 130 and 140 monotonically increases as the wavelength of the light to be measured increases within the set optical wavelength region so that an inverse function exists.
  • the first and second optical sensor units 130 and 140 may be designed so that the spectral response ratio monotonically decreases as the wavelength of the light to be measured increases within the set optical wavelength region.
  • the analysis module converts the photocurrent signal provided from the first and second optical sensor units 130 and 140 into a digital signal, and analyzes the digital signal to calculate the radiation amount of light to be measured.
  • the analysis module calculates the radiation amount ( ⁇ ) of the light to be measured through Equation 1 below.
  • T( ⁇ ) is the spectral transmittance of the optical filter unit 150
  • ⁇ min and ⁇ max are the minimum and maximum wavelength values of light passing through the optical filter unit 150.
  • the irradiance of the light to be measured is within ⁇ min to ⁇ max , and is the spectral irradiance for the wavelength ⁇ ( ) can be calculated by integration.
  • the photocurrent signals (i A , i B ) from the first optical sensor unit 130 and the second optical sensor unit 140 are the spectral irradiance ( ) can be calculated by introducing the respective spectral sensitivities (S A ( ⁇ ), S B ( ⁇ )) of the first optical sensor unit 130 and the second optical sensor unit 140, and the calculation formula is the following equation Same as 2.
  • Equation 3 the spectral sensitivities (S A ( ⁇ ), S B ( ⁇ )) increase linearly with respect to the incident light wavelength, so each spectral responsivity is expressed in Equation 3 below.
  • a 0 , a 1 , b 0 , b 1 are constants determined from calibration measurements of the radiometer.
  • Equation 5 the photocurrent signals of the first and second optical sensor units 130 and 140 are expressed as Equation 5 below.
  • X ⁇ ( ⁇ ) can be substituted for any spectral measurement quantity.
  • Equation 7 the photocurrent signals (i A , i B ) of the first optical sensor unit 130 and the second optical sensor unit 140, Summarizing the equation for the center wavelength ( ⁇ c ), the photocurrent signals of the first and second optical sensor units 130 and 140 are expressed in Equation 7 below.
  • Equation 8 the radiation amount ( ⁇ ) of the light to be measured is calculated based on Equation 7 above, it is as shown in Equation 8 below.
  • the radiation amount ( ⁇ ) of the light to be measured can be derived from the photocurrent signal value of the first and second optical sensor units 130 and 140.
  • the central wavelength ( ⁇ c ) value can be calculated from the spectral response ratio (r( ⁇ )) of the first and second optical sensor units 130 and 140 as shown in Equation 9 below.
  • the center wavelength ( ⁇ c ) value is calculated using the ratio of the photocurrent signals of the first and second optical sensor units 130 and 140 measured as described above and the inverse function of the previously known spectral response ratio (r( ⁇ )). It can be calculated.
  • the dual photodiode radiometer 100 measures the ratio of the photocurrent signals of the first and second optical sensor units 130 and 140 and the corresponding photocurrent signals, and determines the central wavelength of the light to be measured from the ratio of the photocurrent signals. can be calculated, and using this, the radiation amount value of the light to be measured can be obtained.
  • information on the spectral sensitivities of the first and second optical sensor units 130 and 140 and the spectral transmittance of the optical filter unit 150 are written into the analysis module.
  • the optical filter unit 150 is installed inside the case 110 in front of the first and second optical sensor units 130 and 140 and enters the first and second optical sensor units 130 and 140 according to the type of light source to be measured. Filters the light to be measured.
  • the optical filter unit 150 includes a broadband filter having a predetermined transmittance in the set optical wavelength region.
  • the black graph shows the wavelength range and transmittance of light that can be transmitted through the broadband filter
  • the orange graph shows the amount of radiation for each wavelength band of the light to be measured
  • ⁇ min and ⁇ max are the minimum wavelength value in the set light wavelength range and This is the maximum wavelength value
  • ⁇ c is the central wavelength of the light to be measured.
  • a broadband filter having a constant transmittance in a set light wavelength region can be set inside the case 110 for measurement. Since the transmittance of the optical filter unit 150 between the wavelengths ⁇ min and ⁇ max is constant, the transmittance is replaced with a constant value and can be replaced with 1 through calibration. At this time, it is possible to simultaneously measure the central wavelength and radiation quantity characteristics of the light to be measured through the first and second optical sensor units 130 and 140.
  • the dual photodiode radiometer 100 of the present invention can be used as a laser output meter or a monochromatic light radiometer.
  • the optical filter unit 150 may be equipped with a band-pass filter having a predetermined center wavelength and spectral band to be analyzed, as shown in FIG. 6.
  • the black graph shows the wavelength range and transmittance of light that can be transmitted through the bandpass filter
  • the orange graph shows the amount of radiation for each wavelength band of the light to be measured
  • ⁇ min and ⁇ max represent the wavelength range of light that can be transmitted.
  • the corresponding bandpass filter When measuring the radiation amount of a certain wavelength range from a broadband white light source, the corresponding bandpass filter can be set inside the case 110 for measurement. Depending on the selection of the light transmission (T( ⁇ )) area of the corresponding bandpass filter, the amount of radiation integrated in a specific wavelength area of the light to be measured can be measured through the first and second optical sensor units 130 and 140. At this time, the light transmittance value of a certain bandpass filter can be replaced with 1 through calibration. Depending on the wavelength range of the target light to be measured, multiple bandpass filters with various center wavelengths and spectral bands can be replaced and used. Using the above-described bandpass filter, the dual photo diode radiometer 100 of the present invention can be used as a UV meter, an ultraviolet/visible/infrared selective radiometer, and a PPFD photosynthetic photometric meter.
  • the optical filter unit 150 may include a transmission filter having a spectral transmittance corresponding to a preset weighting function.
  • the measurement can be performed by setting the corresponding transmission filter inside the case 110.
  • the CIE XYZ tristimulus value for the light to be measured is measured using the corresponding transmission filter.
  • the orange graph on the upper side is a graph showing the radiation amount by wavelength of the light to be measured, and the lower graph shows the spectral transmittance of a filter set identically to the three types of CIE color matching functions.
  • the dual photodiode radiometer 100 of the present invention with the transmission filter set has the advantage of being able to design and apply a filter tailored only to the weighting function without considering the characteristics of the detector.
  • the present invention can also add a function that can identify the type of filter from the center wavelength value of the light to be measured.
  • the dual photo diode radiometer 100 of the present invention can be used as a photo illuminance meter, photoluminance meter, and colorimeter.
  • the optical filter unit 150 may include a bandpass filter whose center wavelength is variable according to a preset variable pattern, as shown in FIG. 8.
  • the bandpass filter may be designed to have a relatively narrow spectral band of 10 nm or less.
  • the bandpass filter may be set to change the center wavelength in a variable pattern that increases or decreases at a constant speed or at preset intervals as time passes.
  • the black graph shows the wavelength range and transmittance of light that can be transmitted in the bandpass filter, and the black column represents the wavelength range of light that can be transmitted, and is set to have a width corresponding to the set spectral band area.
  • the orange graph is a graph showing the radiation amount by wavelength of the light to be measured.
  • the band pass filter is capable of electro-optical scanning, and since a wavelength tunable band filter commonly used in the related art is applied, a detailed description will be omitted.
  • the present invention can realize the function of a spectroradiometer.
  • the center wavelength of the bandpass filter can be monitored in real time using the first and second optical sensor units 130 and 140 of the present invention, and sensitivity correction for each wavelength is not required, so when a single photodiode is used, Compared to other methods, it is possible to quickly and accurately measure the amount of radiation by wavelength of the light being measured.
  • the dual photo diode radiometer 100 filters the light to be measured through the optical filter unit 150, so that various types of radiometer functions can be implemented.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

La présente invention concerne un radiomètre à double photodiode comprenant : un substrat de base disposé sur le chemin optique de la lumière à mesurer émise par une source lumineuse ; une première unité de capteur optique installée dans une région incidente du substrat de base, sur laquelle la lumière à mesurer est incidente, de manière à recevoir la lumière à mesurer ; et une seconde unité de capteur optique installée, à côté de la première unité de capteur optique, dans la région incidente du substrat de base et recevant la lumière à mesurer, et dont la sensibilité spectrale est différente de celle de la première unité de capteur optique. Le radiomètre à double photodiode selon la présente invention génère des informations sur la lumière à mesurer à partir du rapport entre les signaux optiques acquis à l'aide d'une pluralité de photodiodes, et présente donc l'avantage de pouvoir obtenir des valeurs de mesure plus précises, indépendamment du type de source lumineuse ou des changements dans la distribution spectrale.
PCT/KR2023/018431 2022-11-16 2023-11-16 Radiomètre à double photodiode Ceased WO2024106966A1 (fr)

Applications Claiming Priority (2)

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KR1020220153586A KR102788708B1 (ko) 2022-11-16 2022-11-16 듀얼 포토 다이오드 복사계
KR10-2022-0153586 2022-11-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3163447A1 (fr) * 2024-06-17 2025-12-19 Light In The Led Dispositif analyseur de photons, installation pour le développement d’un être vivant comprenant un tel dispositif et procédé de pilotage d’une telle installation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102922123B1 (ko) * 2024-11-29 2026-02-03 주식회사 오에이큐 수신 광의 분석을 위해 복수의 led들을 포함하는 전자 장치, 및 그 동작 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120089321A (ko) * 2009-10-16 2012-08-09 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 수신된 광의 스펙트럼 성분들을 검출하기 위한 튜너블 스펙트럼 검출 디바이스
KR101465694B1 (ko) * 2013-08-19 2014-12-01 한국표준과학연구원 자외선 지수 측정 장치
KR20160146265A (ko) * 2015-06-12 2016-12-21 한국표준과학연구원 고정확도 필터 복사계
KR20170137380A (ko) * 2016-06-03 2017-12-13 한국과학기술원 센서 모듈
KR20190134635A (ko) * 2017-03-31 2019-12-04 하마마츠 포토닉스 가부시키가이샤 광 검출 장치

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201319079D0 (en) 2013-10-29 2013-12-11 Univ St Andrews Random Wavelength Meter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120089321A (ko) * 2009-10-16 2012-08-09 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 수신된 광의 스펙트럼 성분들을 검출하기 위한 튜너블 스펙트럼 검출 디바이스
KR101465694B1 (ko) * 2013-08-19 2014-12-01 한국표준과학연구원 자외선 지수 측정 장치
KR20160146265A (ko) * 2015-06-12 2016-12-21 한국표준과학연구원 고정확도 필터 복사계
KR20170137380A (ko) * 2016-06-03 2017-12-13 한국과학기술원 센서 모듈
KR20190134635A (ko) * 2017-03-31 2019-12-04 하마마츠 포토닉스 가부시키가이샤 광 검출 장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3163447A1 (fr) * 2024-06-17 2025-12-19 Light In The Led Dispositif analyseur de photons, installation pour le développement d’un être vivant comprenant un tel dispositif et procédé de pilotage d’une telle installation

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